Alert archive / Iowa / Mesoscale Discussions
Mesoscale Discussions in Iowa, 2011
153 mesoscale discussions in 2011. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Mesoscale Discussions
- 153
- Busiest month
- June37 mesoscale discussions
- Busiest day
- June 20, 20117 mesoscale discussions
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 2:50 AM CST | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Henry, Jasper and 14 more | 4 hr |
| Jan 17, 6:35 AM CST | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Keokuk and 9 more | 4 hr |
| Feb 1, 10:36 AM CST | Mesoscale Discussion | SPC | Appanoose, Cedar, Clarke, Clinton, Davis, Decatur and 19 more | 6 hr |
| Feb 1, 3:36 PM CST | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 32 more | 6 hr |
| Feb 19, 11:25 PM CST | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, Osceola and 3 more | 5 hr |
| Feb 20, 4:35 AM CST | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 25 more | 6 hr |
| Feb 20, 10:49 AM CST | Mesoscale Discussion | SPC | Allamakee, Emmet, Howard, Mitchell, Winnebago, Winneshiek and 1 more | 4 hr |
| Feb 24, 11:13 AM CST | Mesoscale Discussion | SPC | Adams, Appanoose, Decatur, Fremont, Page, Ringgold and 2 more | 6 hr |
| Feb 24, 5:20 PM CST | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 5 more | 6 hr |
| Feb 27, 5:50 PM CST | Mesoscale Discussion | SPC | Appanoose, Cedar, Clarke, Clinton, Davis, Decatur and 19 more | 6 hr |
| Mar 20, 2:51 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Benton, Clarke, Dallas, Davis and 26 more | 114 min |
| Mar 21, 10:05 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 17 more | 115 min |
| Mar 22, 1:19 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Crawford, Fremont, Harrison, Mills and 7 more | 116 min |
| Mar 22, 5:33 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Harrison, Madison and 2 more | 57 min |
| Mar 22, 8:00 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Keokuk and 7 more | 60 min |
| Mar 22, 11:21 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 84 min |
| Apr 3, 4:49 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Buchanan, Cedar, Clarke and 31 more | 56 min |
| Apr 3, 7:44 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Cedar, Clinton, Davis, Delaware and 21 more | 61 min |
| Apr 3, 10:23 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Louisa, Muscatine, Scott | 67 min |
| Apr 9, 5:00 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 17 more | 60 min |
| Apr 9, 9:06 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 31 more | 54 min |
| Apr 9, 10:43 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buena Vista, Butler, Cerro Gordo and 25 more | 62 min |
| Apr 10, 1:26 AM CDT | Mesoscale Discussion | SPC | Allamakee, Buena Vista, Cerro Gordo, Chickasaw, Clay, Dickinson and 14 more | 64 min |
| Apr 10, 1:30 PM CDT | Mesoscale Discussion | SPC | Allamakee, Buchanan, Clayton, Delaware, Dubuque, Fayette and 5 more | 2 hr |
| Apr 10, 5:03 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Delaware, Des Moines, Dubuque and 12 more | 57 min |
| Apr 19, 5:52 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Lee, Ringgold, Van Buren and 1 more | 83 min |
| May 10, 5:10 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek, Worth | 95 min |
| May 10, 8:45 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek, Worth | 90 min |
| May 11, 8:09 AM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 32 more | 66 min |
| May 11, 2:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Crawford and 13 more | 59 min |
| May 11, 3:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Buchanan, Cedar and 26 more | 2 hr |
| May 11, 5:03 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 57 min |
| May 11, 6:17 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Jasper, Lucas and 9 more | 28 min |
| May 11, 8:16 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Taylor | 59 min |
| May 12, 5:35 PM CDT | Mesoscale Discussion | SPC | Calhoun, Carroll, Crawford, Harrison, Ida, Monona and 4 more | 85 min |
| May 12, 9:16 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Page, Pottawattamie | 59 min |
| May 12, 10:27 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 31 more | 63 min |
| May 21, 12:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 31 more | 114 min |
| May 21, 5:25 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 9 more | 65 min |
| May 21, 6:07 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 42 more | 53 min |
| May 21, 8:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 68 more | 65 min |
| May 22, 4:41 AM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 28 more | 2 hr |
| May 22, 10:53 AM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 39 more | 2 hr |
| May 22, 2:59 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Chickasaw and 10 more | 2 hr |
| May 22, 5:47 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Dubuque, Jackson, Johnson and 4 more | 88 min |
| May 24, 1:11 PM CDT | Mesoscale Discussion | SPC | Buchanan, Cedar, Clinton, Jackson, Johnson, Jones and 3 more | 94 min |
| May 25, 12:48 AM CDT | Mesoscale Discussion | SPC | Lee | 57 min |
| May 29, 1:41 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Jefferson, Monroe, Page and 5 more | 2 hr |
| May 29, 8:39 AM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Buchanan, Cedar, Clarke, Clinton and 28 more | 66 min |
| May 29, 4:36 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 24 min |
| May 29, 9:24 PM CDT | Mesoscale Discussion | SPC | Audubon, Crawford, Harrison, Ida, Mills, Monona and 5 more | 96 min |
| May 30, 10:09 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 2 hr |
| May 30, 10:38 PM CDT | Mesoscale Discussion | SPC | Cherokee, Harrison, Ida, Monona, Plymouth, Woodbury | 2 hr |
| Jun 4, 4:47 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee, Van Buren | 28 min |
| Jun 5, 2:52 AM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Des Moines and 18 more | 2 hr |
| Jun 5, 5:17 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Buena Vista, Butler and 19 more | 88 min |
| Jun 6, 1:08 AM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 10 more | 2 hr |
| Jun 8, 2:02 AM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 1 more | 2 hr |
| Jun 8, 3:36 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 41 more | 84 min |
| Jun 8, 6:31 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Montgomery, Page, Taylor | 59 min |
| Jun 8, 8:43 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Des Moines, Dubuque, Henry and 14 more | 92 min |
| Jun 9, 1:44 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Boone and 48 more | 2 hr |
| Jun 9, 9:50 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 37 more | 55 min |
| Jun 9, 7:43 PM CDT | Mesoscale Discussion | SPC | Appanoose, Decatur, Fremont, Page, Ringgold, Taylor and 1 more | 92 min |
| Jun 9, 11:45 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 33 more | 90 min |
| Jun 10, 1:39 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 36 more | 2 hr |
| Jun 13, 9:23 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Cass, Clarke and 33 more | 97 min |
| Jun 13, 11:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 22 more | 93 min |
| Jun 14, 3:21 AM CDT | Mesoscale Discussion | SPC | Davis, Henry, Jefferson, Lee, Mahaska, Van Buren and 1 more | 3 hr |
| Jun 14, 2:56 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Clarke, Davis, Decatur and 10 more | 94 min |
| Jun 14, 7:47 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 8 more | 58 min |
| Jun 15, 1:55 AM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 3 more | 3 hr |
| Jun 17, 6:44 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 24 more | 91 min |
| Jun 19, 6:21 PM CDT | Mesoscale Discussion | SPC | Fremont | 84 min |
| Jun 19, 9:16 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 31 more | 59 min |
| Jun 20, 1:40 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 24 more | 35 min |
| Jun 20, 3:27 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 28 more | 33 min |
| Jun 20, 4:08 AM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Davis, Des Moines, Henry and 12 more | 67 min |
| Jun 20, 7:29 AM CDT | Mesoscale Discussion | SPC | Black Hawk, Grundy, Hamilton, Hardin, Jasper, Mahaska and 6 more | 61 min |
| Jun 20, 5:55 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Calhoun, Carroll, Dallas and 15 more | 65 min |
| Jun 20, 6:17 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Plymouth, Woodbury | 58 min |
| Jun 20, 7:46 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Crawford and 12 more | 59 min |
| Jun 20, 9:02 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 21 more | 58 min |
| Jun 20, 10:22 PM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Boone, Bremer, Buchanan and 48 more | 83 min |
| Jun 21, 1:25 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 14 more | 35 min |
| Jun 21, 11:45 AM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Delaware, Dubuque, Fayette and 5 more | 3 hr |
| Jun 26, 6:16 AM CDT | Mesoscale Discussion | SPC | Audubon, Cass, Cherokee, Crawford, Fremont, Harrison and 10 more | 59 min |
| Jun 26, 3:09 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 2 hr |
| Jun 26, 6:22 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Jefferson, Lee, Van Buren | 83 min |
| Jun 26, 8:48 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 17 more | 117 min |
| Jul 1, 12:59 PM CDT | Mesoscale Discussion | SPC | Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux | 61 min |
| Jul 1, 7:35 PM CDT | Mesoscale Discussion | SPC | Allamakee, Boone, Bremer, Butler, Calhoun, Carroll and 22 more | 55 min |
| Jul 1, 10:04 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 11 more | 116 min |
| Jul 1, 11:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Chickasaw and 5 more | 97 min |
| Jul 5, 2:49 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page, Pottawattamie | 86 min |
| Jul 5, 3:32 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 23 more | 88 min |
| Jul 5, 7:07 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Page | 113 min |
| Jul 5, 7:49 PM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Carroll, Clarke, Dallas, Decatur and 11 more | 56 min |
| Jul 10, 1:03 AM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Kossuth, Lyon, O'Brien and 3 more | 117 min |
| Jul 10, 2:45 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 9 more | 2 hr |
| Jul 10, 7:51 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek | 84 min |
| Jul 10, 9:53 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Dickinson, Emmet, Floyd and 9 more | 67 min |
| Jul 10, 10:27 PM CDT | Mesoscale Discussion | SPC | Cherokee, Harrison, Monona, Plymouth, Sioux, Woodbury | 63 min |
| Jul 10, 11:45 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Cerro Gordo, Chickasaw, Clayton, Delaware and 8 more | 90 min |
| Jul 11, 2:36 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Benton, Black Hawk, Boone, Bremer and 52 more | 114 min |
| Jul 11, 5:07 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clayton, Clinton and 15 more | 113 min |
| Jul 12, 2:09 AM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Carroll, Cass, Cherokee, Crawford and 11 more | 66 min |
| Jul 12, 1:00 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 2 hr |
| Jul 15, 11:20 AM CDT | Mesoscale Discussion | SPC | Howard, Mitchell, Worth | 85 min |
| Jul 15, 2:21 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 38 more | 114 min |
| Jul 19, 1:04 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Clinton, Delaware, Dubuque, Fayette and 5 more | 86 min |
| Jul 21, 2:14 AM CDT | Mesoscale Discussion | SPC | Monona | 2 hr |
| Jul 21, 3:45 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Dallas, Fremont and 15 more | 90 min |
| Jul 21, 7:09 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Des Moines and 18 more | 96 min |
| Jul 22, 3:00 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 61 more | 90 min |
| Jul 22, 7:38 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 19 more | 97 min |
| Jul 23, 1:10 PM CDT | Mesoscale Discussion | SPC | Allamakee, Winneshiek | 65 min |
| Jul 23, 1:52 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Hancock, Kossuth, Lyon and 6 more | 83 min |
| Jul 23, 4:57 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 26 more | 93 min |
| Jul 23, 8:40 PM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Dickinson, Emmet, Floyd, Hancock, Howard and 6 more | 95 min |
| Jul 27, 2:49 AM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Lyon, Osceola | 56 min |
| Jul 27, 6:54 PM CDT | Mesoscale Discussion | SPC | Clayton, Clinton, Delaware, Dubuque, Jackson, Jones | 66 min |
| Jul 27, 9:43 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones | 62 min |
| Jul 28, 12:36 AM CDT | Mesoscale Discussion | SPC | Buchanan, Clinton, Delaware, Dubuque, Jackson, Jones and 1 more | 84 min |
| Jul 28, 2:47 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee, Crawford and 18 more | 118 min |
| Jul 28, 5:40 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clinton, Davis, Decatur, Des Moines and 14 more | 95 min |
| Aug 1, 1:50 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 1 more | 25 min |
| Aug 1, 3:53 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Mitchell, Winneshiek, Worth | 67 min |
| Aug 2, 12:57 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 36 more | 93 min |
| Aug 6, 2:58 PM CDT | Mesoscale Discussion | SPC | Audubon, Cherokee, Crawford, Fremont, Harrison, Ida and 6 more | 3 hr |
| Aug 6, 8:10 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 45 more | 2 hr |
| Aug 6, 11:06 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Davis and 25 more | 114 min |
| Aug 7, 10:28 PM CDT | Mesoscale Discussion | SPC | Audubon, Calhoun, Carroll, Cass, Cherokee, Crawford and 10 more | 2 hr |
| Aug 8, 1:06 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Des Moines, Dubuque, Henry and 11 more | 84 min |
| Aug 11, 6:38 PM CDT | Mesoscale Discussion | SPC | Cherokee, Lyon, Monona, O'Brien, Plymouth, Sioux and 1 more | 97 min |
| Aug 11, 9:42 PM CDT | Mesoscale Discussion | SPC | Cherokee, Ida, Lyon, O'Brien, Osceola, Plymouth and 2 more | 63 min |
| Aug 17, 3:44 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Lee, Scott | 91 min |
| Aug 18, 12:31 PM CDT | Mesoscale Discussion | SPC | Crawford, Harrison, Ida, Mills, Monona, Plymouth and 3 more | 89 min |
| Aug 18, 2:51 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Guthrie and 9 more | 84 min |
| Aug 18, 6:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 27 min |
| Aug 18, 8:29 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Mills, Montgomery, Page and 2 more | 61 min |
| Aug 18, 9:52 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 53 min |
| Aug 22, 1:42 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Carroll, Cass, Clarke and 23 more | 3 hr |
| Aug 23, 12:45 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 56 more | 2 hr |
| Aug 23, 4:55 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 23 more | 2 hr |
| Aug 28, 10:41 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Calhoun, Carroll, Cass and 23 more | 94 min |
| Sep 2, 3:27 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Clay, Emmet, Floyd, Hancock and 10 more | 93 min |
| Sep 2, 2:41 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 66 more | 94 min |
| Sep 2, 10:04 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Benton, Black Hawk, Boone and 22 more | 86 min |
| Sep 2, 11:56 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Cedar, Clayton and 26 more | 94 min |
| Oct 25, 6:56 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee | 3 hr |
| Nov 9, 4:41 AM CST | Mesoscale Discussion | SPC | Allamakee, Bremer, Buchanan, Chickasaw, Clayton, Delaware and 2 more | 4 hr |
| Dec 3, 10:37 AM CST | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Crawford, Emmet and 11 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mahaska County45
- Appanoose County43
- Monroe County43
- Fremont County43
- Davis County42
- Adams County42
- Mills County42
- Marion County41
- Wapello County41
- Page County40
- Clarke County39
- Decatur County39
- Lucas County39
- Keokuk County38
- Van Buren County38
- Wayne County38
- Harrison County38
- Pottawattamie County38
- Warren County37
- Cass County37
- Montgomery County37
- Audubon County36
- Jefferson County35
- Poweshiek County35
- Ringgold County35
- Union County35
- Monona County35
- Adair County35
- Jasper County34
- Des Moines County34
- Winneshiek County34
- Taylor County34
- Madison County34
- Shelby County34
- Guthrie County34
- Henry County33
- Howard County33
- Crawford County33
- Carroll County33
- Lee County32
59 more counties
- Clinton County32
- Jones County32
- Greene County32
- Polk County31
- Washington County31
- Iowa County31
- Jackson County31
- Dallas County31
- Woodbury County31
- Delaware County30
- Tama County30
- Allamakee County30
- Louisa County29
- Muscatine County29
- Scott County29
- Johnson County29
- Linn County29
- Marshall County29
- Black Hawk County29
- Ida County29
- Buchanan County28
- Worth County28
- Boone County28
- Benton County27
- Dubuque County27
- Fayette County27
- Calhoun County27
- Sac County27
- Chickasaw County26
- Mitchell County26
- Cedar County25
- Dickinson County25
- Palo Alto County25
- Clayton County25
- O'Brien County25
- Cherokee County25
- Plymouth County25
- Clay County24
- Osceola County24
- Bremer County24
- Grundy County24
- Pocahontas County24
- Story County23
- Winnebago County23
- Floyd County23
- Humboldt County23
- Hardin County23
- Buena Vista County23
- Webster County23
- Emmet County22
- Kossuth County22
- Sioux County22
- Hancock County22
- Butler County20
- Hamilton County20
- Cerro Gordo County19
- Lyon County18
- Wright County18
- Franklin County17
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.